Fort Knox Guardian Gun Safes take high-end safes to the next level. They retain the same outer 3/16″ steel body that many other companies use in their top of the line safes but the Guardian doesn’t stop there, it also has an inner 10ga steel liner. In addition to the body steel upgrade, the Guardian series comes equipped with their Reinforced Fire Door with full plate steel reinforcement, Fort Knox’s patented Rack and Pinion 5-to-1 reduction gear drive, and 90 minute fire rating at 1680°F. Fort Knox Guardian gun safes also come standard with LED lighting and Fort Knox’s optional corner bolts which offer pry protection far beyond what others have to offer. Fort Knox Guardian gun safes come in many sizes, 6031, 6637, 7241, 7251 and 7261 gun safes. As with all of their safes, the Fort Knox Guardian Gun Safes are proudly made in the United States and boast the most comprehensive lifetime warranty. This includes the lock, interior, handle/bolt work, mechanism, clutch, and body of the vault.